Sweden – Construction work for buildings relating to railway transport – Bollnäs växelbyte produktion

The purpose of the action is to maintain and ensure the functionality of the Northern Main Line through the Bollnäs station. The Northern Main Line is a very important part of Sweden's railway network and has extensive traffic of both freight and passenger trains. In Bollnäs, the double track from the south transitions to single track to the north, and the single-track line to Edsbyn-Furudal also connects at the station. The current track sections have a low technical standard and today risk causing problems for rail traffic and entail high maintenance costs. The low technical standard of the tracks also increases the risk of safety-critical track faults. The action includes the installation of 17 new sets of points. Existing points will be demolished and replaced in partially new locations as the station is extended to the south. The action includes the demolition of approximately 2 000 metres of track and approximately 2 000 metres of new track will be laid. As the station is extended to the south, it is required that cables and signal, electric power, contact line, and ground installations are adapted to the point relocation and track change. Bollnäs is a complex interlocking of model M59 with installation year 1981. Traffic control system H and is equipped with ATC with parallel and series coders. Adjacent lines affected are the double track from Kilafors and the single track to Lottefors, both of which are controlled by conventional line blocking. In/out signals on the single-track line to Edsbyn-Furudal will also be affected.